Spinning-box for artificial silk



"J. CLAYTON.

SPINNING BOX FOR ARTIFICIAL SILK.

APPLICATION FILED APR, 8. 191a.

1,385,306. Patented July 19, 1921. J;

Han ar-z f/imfs I CLflI TM/ he all'whomit UNITED STATES, PATIENT OFFICE.-

J'AHES CLAYTON, OF COVENTRY, ENGLAND, ABSIGNOR TO-COUB'I'AUIJJS, LTD, 0!

' DDNDON, ENQLAND.

srnmmeanox ron earn-1cm sxnx.

I Specification of Letters Patent.-

- Patented July 19, 1921 Application filed April 8, 1918. Serial No. 227,348.

mag concem: Be' it known t at 1,,JAMEs GmmoN, a subject of the Kin of Great Britain, residing at 12 Middle rough road, Coventry, En land, have invented certain new and use 111 Improvements in Spinni -Boxes for Artificial Silk, of which the, fol owing is a specification.

boxes My invention relates to spin and particularly to boxes for use in t 0 spinning of artificial silk, the object of m invention being to rovide a box not on y of lighter construction I and greater capacity than. heretofore within a given overall d1- ameter, but also possessing certain features of novelty which eatly facilitate the removal of the coilofipun fiber from the box.

In the accompanying drawing,

Fi ure 1 'is a vertical section through a box in .which'my invention is embodied in one form;

Fig;- 2 is an inverted plan of the bottom plate of the box;

Fig. 3 is a section on the line 3-3, Fig. 1 with the bottom plate removed;

. Fig. 4 is avertical section through the base of the box on the line 44, Fig. 3.

v In my prior Patent 1,240,67 5, I have shown an apparatus for-spinning artificial silk in which is disclosed the common type of spinning box heretofore employed by me.-

7 The box there shown comprises a relatively heavy structure, ,detachably supported upon a rotary spindle carryin a mushroom bushing for the box hub.'- A r the fiber coil has been completed, the box is lifted from the spindle and the fibercoil or cake removed.

erefromby turnin the box upside down or otherwise manipu ating the same to dis- In replacing a box of this type upon the spindle, the workman is very apt to shove it down sufiiciently hard to displace the mushroom bushing on the spindle, and this disturbs the relationship between the spinni funnel and the box with the result that t 0 quality of the fiber is impaired, since a; recise relationshipbetween the spinning Box and-spinnin funnel must be maintained if the desir twist is to be imparted to the fiber. Moreover,

there is considerable labor incident to the handling of a heavybox of this type, and the operation of biting and carrying it requires considerable strength. Again, the removal of the fiber cake from the box not infrequently causes damage to the cake.

By the present construction I have pro vided a two-part box com rising a base,

fixedly attached to the s in lo, and a separable basket-like cover 0 1i ht construction,

which may be readily free from the base, leaving the fiber cake'expos'ed on the latter.

from which it may be readily removed. By

my improved construction, the box is not,

only much lighter than heretofore, but its,

center of gravity is lower; and these .facts,

combined with the fixation of the base to the spindle, render it possible to drive the box at a considerably increased speed over that heretofore pract1sed Furthermore, the increased ca acity of the box enables it to be operated or a lon er period of time without interruption. his increased capacity is due to the construction of the basket-like cover, which, while of less overall diameter than heretofore, has an increased internal diameter. The-easy removalaof the fiber 'cake from the box dispenses with the labor of transporting-the box and its contents, lessens the likelihood of dam e to. the box or injury to the fiber cake, whi e the mounting of the box base permanently on the spinning spindle not only avoids danger to the supporting mushrooms, bushes, springs, lids, etc., but insures the maintenance of the predetermined exact relationshi between the spinning funnel and box which is essential to the roduction of a uniform, properly twisted fiber Referring to the drawing, the box here shown comprises a base 10 with hub 11 fitting the spinning spindle 12 and secured thereto in any suitable way, as by means of a set screw 13. The periphery of the base plateis slightly coned, and at its lower edge is provided with an ofiset flange 14,

u n which the lower edge ofthe basketli e cover 15 rests in adjusted position. The cover is provided adjacent itslower margin with a V-shaped annulus 16, which not only stifiens the cover against m ury, but affords means. by which the cover may be retained'in position on the base. The means here shown. for this purpose comrises a series of locking P1118 17 with eveled noses 18 which bear. against the lower side of the V-shapqikannulus 16'of the cover. The pins 17 we in housings 19 formed in the base and are pressed outward by springs 20 confined within the housings. Stop pins 21 passing through slots 22 in the pins, prevent the escape of the latter from the base. The springs 20'serve merely to insure the initial engagement of the pins 17 with the annulus 16 in the cover. The pres sure exerted by centrifugal force during the rotation of the box exceeds the pressure of the springs 20 and assures the firm engagement of the cover on the base. The downward pressure of the beveled noses 18 of the pins 17 forces the cover down with a wedgin action on flange 14.

11 order to protect the base as much as possible from the action of the acids entrained by the fiber entering the box, I provide the base with a cover plate 23 of acidproof material such as rubber, and conforming to the contour of the base incident to the formation of the housings 17 This plate 23 is secured to the base by a countersunk screw 24 overlain by a plug 25 of rubber.

The box cover 15 is preferably conical, as indicated, in order the more freely to leave the fiber cake 26 when the cover is lifted, so that the cake remains upon the base 10 and may be readily lifted therefrom by hand and placed upon a conveyer or other suitable temporary rest. The top of the cover 15 is apertured at 27 to admit the spinning funnel, and preferably a collar 28 is formed to provide a rest for an opening tool of the type shown in my ap lication of even date herewith, Serial No. 22 ,349.

While the present box is primarily designed for use on a spinning spindle which may be lifted to accessible position for the removal of the fiber cake, as shown in my second application of even date herewith, Serial No. 227,350, it may be utilized in any suitable spinning apparatus. In the construction illustrated I have shown the base 10 as a cast metalv structure and the cover 15 formed of any suitable acid-resisting sheet metal, such as Monel metal or the like, which may be shaped in suitable forming apparatus. The latchin means for the cover may be of any desire sort, and I do not limit my invention to the centrifugal pins illustrated. Various modifications 1n details of construction will readily occur to those skilled in the art which do not depart from what I claim as my invention.

I claim 1. A spinning box of the class described comprising a relatively heavy base adapted to be mounted in fixed position on a spinm'ng spindle, and an inde endent relatively light basket-like cover a apted to rest on said base and form therewith a spinning chamber and outwardly displaceable means carried by and permanently afiixed to the base for detachably securing said cover to the base during the spinning operation.

2. A spinning box of the class described comprising a base adapted to be mounted in fixed position on a spinning spindle, an in dependent basket-like cover adapted to rest on said base and form therewith a spinning chamber, and centrifugally operated means housed in saidbase for detachably securing said cover to the base during the spinning operation.

3. A spinning box of the class described comprising a base adapted to be mounted in fixed position on a spinning spindle, an independent basket-like cover adapted to rest onsaid base and form therewith a spinning chamber, and centrifugal means carried by the base and having a downward as well as an outward motion under centrifugal force and engaging the cover with a wedging action to hold the cover securely down upon the base during the spinning operation.

4. A spinning box of the character described comprising a base adapted to be mounted in fixed position on a spinning spindle, an independent basket-like cover adapted to rest on said base and form therewith a spinning chamber, and means for detachably securing said cover to the base during the spinning operation, together with a marginal flange on the base and a cover plate of acid-proof material completely overlying the base within the area comprehended by said flange and forming the bottom of the spinning chamber.

5. A spinning box of the class described, comprising a. base having a side wall and peripheral fiange,'a basket-like cover fitting over said base and restin on said base flange, together with centri ugally operated means bearing against said cover and having a downward and outward movement to engage said cover and force the latter downward firmly on said base flan e.

6. A spinning box of the c ass described, comprising a base having a side wall and peripheral flange, a basket-like cover fitting over said base and resting on said base flange, said cover havin an annular channel on its inner face wit in the base-engaging area thereof, together with centrifugally operated means engaging said channel in the cover and having a downward and outward engaging movement to force said cover downward firmly on said base flan e.

In testimony whereof I have signed my name to this specification.

JAMES CLAYTON. 

